Bug #2554: Host with datasource program should not be force to have an IP address

Date: 2017-05-29State: openClass: bugComponent: core

You have a host that is monitored via a datasource program. Thishost has no DNS resolvable name, which is no problem sind Check_MKdoes not need to do a TCP connect.Nevertheless during the discovery Check_MK trries a DNS lookupand fails. But it should known that no IP adress is neccessary(since the datasource program command line does not contain <tt>&lt;IP&gt;</tr>.During the failed DNS lookup the datasource program is notbeing called.Better would be to use "" or 0.0.0.0 as an IP address instead.